Merge in filtering updates

Removed _create_fit_dataset from Model class
Renamed _create_fit_dataset to _create_fit_datasets in BELoopModel

Capped pixels per run to 500, writing missing parameters, NOT halving C. Setting lengthy computations to True

Inference now corrects for r_extra. Restructured output of inference on period. Added plot for I reconstructed

Fixed bug with memory and core calc. Added noise threshold to grp attrs. Always printing progress when writing.